\version "2.6.0"
\header{
texidoc="
In addition to normal collision rules, there is support for polyphony, 
where the collosion are avoided by shifting middle voices horizontally.
"
}


twovoice =
 \relative c' \context Staff  << 
	 {  g4 f f e e d d c } 
\\ {  c4 c  d d e e f f }
>>

twovoicechords = \context Staff  <<
 \relative c' {
 e4 d c b a g f
	}\\
 \relative c' {
	 <a c>4 <a c>4 <a c>4 <a c>4 <a c>
		<a c> <a c>  
	}
>>


threevoice = \context Staff  <<
	 { g4 f e f g a g2 } \\
	 {  c4 d e d c d es } \\
	 { e4 e e e e e e e  }
>>

hairyChord = \context Staff  \relative c''
    << e \\
      fis, \\
      cis' \\
      \\
      ais
      >>


\score{
	 { \transpose c c' {
	   \twovoice
	   \twovoicechords
	   \threevoice   }
	 \hairyChord
	}
	
%	\midi { \tempo 4:80 }
}

